Closure for the end of a tubular body



J. C. DUNN CLOSURE FOR THE END OF A TUBULAR BODY Jan. v9, 1951 Filed Oct. 19, 1948 INVENTOR.

A TTORNEYS.

Patented Jan. 9, 1951 UNITED STATES PATENT. OFFICE John C. Dunn, Providence, R. I. Application October 19, 1948, Serial N 0. 55,291

This invention relates to a closure for the ends of a core for a paper tube, particularly a tubular core about which cloth and the like material is wound to package the same.

It is usual to wind a bolt of cloth about a tubular paper core, the ends of which are provided with a closures which are received over the outer surface of the end portions of the core. The use of such a closure requires the core to be made longer than the width of the material to be 2 Claims. 206-50) flange of the closure to engage. The ends of a bolt of cloth thus wound when placed on end in shipping oftentimes slips axially in somewhat of a cone. This so-called coning at the end of the cloth bolt is objectionable.

An object of the invention is the provision of a removable closure for closing the ends of a paper tube core which is so constructed as to be held assembled with the core in a manner to permit making the length of the core substantially equal to the width of the material wound thereon.

Another object of the invention is the provision of a removable closure for closing the ends of a paper tube core which is so constructed as to be held in place in a manner whereby a space is provided between the walls of the cap and the tube so as to adapt the core to additionally function as a dispensing device for samples of the material wound on the core.

Another object of the invention is the provision of a closure for closing the ends of a paper tube core which is so constructed as to provide for the naiiufacturing tolerances in the diameter of the ube.

A more specific object of the invention is the provision of a closure for the ends of a tubular body which is so constructed as to be removably held in position by frictioning the inner wall of the tubular body.

Another object of the invention is the provision of a closure for the ends of a paper tubular body which will be frictionally held in place in a manner to resist its removal by a force applied axially thereon, but which may be removed by a combined twisting and axial movement applied thereto.

Another object of the invention is the provision of a closure of the above character wherein means will be provided for removably attaching a card thereon on which there may be displayed advertisingdata and the like.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings:

Figure 1 is a perspective view of a bolt of cloth embodying my invention;

Figure 2 is a similar View but showing the closure of the core of the cloth bolt removed therefrom;

Figure 3 is a central section view of a fragmental portion of the core with the closure in position thereon;

Figure 4 is a sectional view taken diametrically through the closure;

Figure 5 is an end view of the closure looking in the direction of the arrows 5-5 in Figure 4; and

Figure 6 is a perspective view of an element forming part of the closure.

' The invention comprises in general providing a closure for the ends of the usual tubular core of a bolt of cloth. The closure is constructed such that the same may be inserted within the core and is provided with resilient means for engaging the inner surface of the core to hold the closure in place thereon. The resilient means are raised from the stock of the body of the closure in such a manner that an axial pull on the cap in a direction to remove the same from the closure will tend to move the fingers into firmer engagement with the walls of the core. These resilient fingers are so arranged that a combined radial and axial force applied thereto such as would result from a twisting or turning of the cap will move these fingers inwardly to permit 7 outward movement of the closure to remove the same from the core. The invention also contemplates utilizing the core for the storingof sample material'which may have been previously cut from the bolt into strip form and so that the same may be drawn from the core in the space provided between the body of the closure and the walls of the core. V

Referring to the drawings for a more detailed description of the invention, l0 designates generally a bolt of cloth wound upon a tubular paper core I I, the ends of which are closed by means of a closure designated generally l2. The closure I2 is preferably made of sheet metal in a general cup formation providing a body portion I3 having a cylindrical wall l4 and a bottom wall H with a centrally disposed opening [6 therein. The walls l4 and I5 are connected by a curved wall section I! from which are severed and raised resilient fingers or tabs l 8. These are equally spaced about the section I 7 with the lower end of the tab extending in continuation of the wall l5 and providing sharp curved or arcuate edges [9 to be resiliently moved into engagement with the inner surface of the core II.

A flange extends substantially at right angles to the wall [4 providing an annular shoulder 2|. The peripheral edge of the flange is provided with a rim 22 providing a recess 23. A disc 24, one side of which may carry data of an advertising. nature, is receivedi in the recess 23 and frictionally held in place by the inner edge of the rim 22 which is, in the present instance, cylindrical in cross section. This disc 24 may be; readily removed by inserting a finger through the opening It to push the disc 24'-outofthe-recess.

The closure 12 is inserted into the ends of the" core II by pushing the same therein a distance.

sunicient to engage the shoulder 2| with the edge of the core. core II, a force is applied to the tabs l8,in a direction to move the same inwardly of the core. The resiliency of the tabs 18 will tend to move the tabs outwardly to position the sharp". edges lfil into engagement withthe'surroundingj' wall of the'core II to friction-ally retain the closure I2 in the core. A direct pull on the cap' inth'e opposite directionwill tend to move. the tab' l8 outwardly to position the edges 19' intomo're secure engagement withthe walls ofathe' core; thus resisting the removal thereof by an" axial pull on the closure. In order to removethe closure I2 from the core, the closure I2". is turned and at the same time movedaxially.

In the, retail merchandising ofcloth' material, theprospective buyer often requests and receives a small sample of the cloth. To this end, a strip of cloth is usually cut from thebolt to. be thereafter severed into smaller lengths on request. Such sample cloth strips are attached to the bolt in various manners by improvised means. and often become mislaid and lost. Inorder to pree vent such losses of. sample cloth strips, I utilize thecore II as a dispensing containerwherein a sample cloth strip 21' may be. stored. The end of the strip 28, is shown in Figure. 1',.is made to extend outwardly of the closure IZLand is positioned to be in-the space 29' between .the tabsv [8' of the closure and the wallofthecore and-maybe drawn outwardly as demanded. When arequest for a-cloth sample is made,.the portion.of.the

sample 28 may-be pulled upon .toprovide-asuffi oient length to be severed'to furnish-the sample requested. Thus, Iprovidea dispenser. container integral with the bolt forsamplecloth strips.

I have shown the closure. l2 and'described the In inserting the-closure l2 in'thesame as particularly adapted for the end of tubular cores of bolts of cloth; however, the cap may be advantageously employed for the ends of many other tubular bodies such, by way of example, as mailing tubes or other types of containers wherein a closure is required.

I claim:

1. A package comprising a tubular core providing a chamber, cloth-.wound thereon, a closure-for theendiof saidcore havinga body portion of less diameter than the inner diameter of the core providing a space between the said body and inner wall of the core when said cap is insertedtherein and circumferentially spaced resilient tabs carried by said body for frictionally fromthe stock.oflthe.curved portion and united at their bases with the bottom v wall and each [having. its freeend terminating in an arcuate shaped edge that extends outwardly. and beyond the periphery of the cylindricallportion.

JO HN-C. DUNN.

REFERENCES" CITED I'he (following references.: are of record: in the file of this patent:

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418,2TIl- Bockmaster- Dec: 31,1889 554,041 Stratton Feb. 4;- .1896 673,416 Booth May; 7,-1901 730,378? Lambert .J-une 9, 1903 19911512. Young. Mar. 31;.1914 1;558, 776- Barratt Oct. .27,- .1925 1,572,082. Rainge Feb; 9, 1926' 1,861,2l3 l Bartlett- May -31",..193-2 1,935,367 Lippett et al Nov. 1 l';.1933 2,049,334 Sabota' July; 28;.1936 2,068,440 Sunderhauf Jan: 19;193'7 2,130,728- Berkman Sept; 20; 1938 2,269,939. Janisch .J an. 135.1942 

